I am not really sure, if am right here, but maybe you can help me out.
Currently I am looking for an smartphone app which tracks the sensor data while filming to use them later on for making a 3D path in Blender to use for the virtual camera. There should be enough gyroscopic datas to create such a path. You could easily put CGI in real filmed scenes. This way you would avoid hard tracking keyframes especially when you are switching location or the angle to hard without a cut.
Is there anything already out there for smartphone? I only found expensive stuff you have to buy seperatly. Or would it be easy to program?
Best regards, Leonard
BTW: Sorry for my English, I'm German.